Article
  • Phase Transfer Catalysis in Polymerization and Organic Reactions: Phase Transfer Polycondensation between Bisphenolate Anions and 1, 6-Dibromohexane in the Presence of Tetrabutylphosphonium Bromide
  • Jin JI, Chang JH, Cho BR
  • 상이동 촉매를 이용한 중합 및 유기반응에 관한 연구-브롬화 테트라부틸 포스포늄 존재하에서 비스페놀 음이온과 1,6-디브로모헥산의 상이동중축합
  • 진정일, 장진해, 조봉래
Abstract
Polyethers were synthesized by the reaction of various bisphenols with 1,6-dibromohexane in NaOH (aq)-nitrobenzene using tetrabutylphosphonium bromide as a phase transfer catalyst. The effects of catalysts bisphenol structure, and base concentration were studied and compared with our earlier results. The catalytic activity of the catalysts in the present polymerization was in the order of tetrabutylphosphonium bromide> tetrabutyl-ammonium bromide>dibenzo-18-crown-6. The reactivity of the bisphenols decreased in the order, 2,2-bis(4-hydroxyphenyl)propane> bis(4-hydroxyphenyl)sulfide>bis(4-hydroxy-phenyl)ketone>bis(4-hydroxyphenyl) sulfone. The polymer yield increased when excess NaOH wag used. A distribution study revealed that there is a reasonable correlation between the degree of anion partitioning into nitrobenzene and the polymer yield.

Keywords:

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1983; 7(3): 185-190

    Published online Jun 25, 1983

  • 10.7317/pk.
  • Received on Nov 30, -0001
  • Revised on Nov 30, -0001
  • Accepted on Nov 30, -0001

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